Results 81 to 90 of about 96,956 (284)

Accurate modeling of confounding variation in eQTL studies leads to a great increase in power to detect trans-regulatory effects [PDF]

open access: yes, 2011
Expression quantitative trait loci (eQTL) studies are an integral tool to investigate the genetic component of gene expression variation. A major challenge in the analysis of such studies are hidden confounding factors, such as unobserved covariates or ...
Neil Lawrence   +2 more
core   +1 more source

Are Large Physiological Reactions to Acute Psychological Stress Always Bad for Health? [PDF]

open access: yes, 2009
How we react physiologically to stress has long been considered to have implications for our health. There is now persuasive evidence that individuals who show large cardiovascular reactions to stress are at increased risk of developing cardiovascular ...
Acheson   +144 more
core   +2 more sources

Analysis of dedicated revenue scale and diversity among U.S. state fish and wildlife agencies

open access: yesThe Journal of Wildlife Management, EarlyView.
Most revenue for state fish and wildlife agencies originates from 3 sources: 1) hunting, fishing, and trapping licenses; 2) Federal Aid in Wildlife Restoration Grants; and 3) Federal Aid in Sportfish Restoration Grants. However, states also generate substantial revenue through 22 additional unique mechanisms, ranging from sales taxes to license plate ...
Charlie R. Booher   +5 more
wiley   +1 more source

Feeding sources and trypanosome infection index of Rhodnius pallescens in a Chagas disease endemic area of Amador County, Panama Fontes de alimentação de R. pallescens e índice de infecção por Trypanosoma em área endêmica da doença de Chagas em Amador, região central do Panamá

open access: yesRevista do Instituto de Medicina Tropical de São Paulo, 2008
The sylvatic triatomine Rhodnius pallescens is considered to be the most important and widespread vector of Trypanosoma cruzi and Trypanosoma rangeli in Panama.
Vanessa Pineda   +5 more
doaj   +1 more source

The Culicoides (Diptera: Ceratopogonidae) of Belize, Central America [PDF]

open access: yes, 1999
The Culicoides fauna of Belize is poorly known, and until 197 4 only 3 species were recorded. Nineteen species of Culicoides from Belize were identified from six collection sites: C. barbosai Wirth & Blanton, C. crepuscularis Malloch, C.
Brickle, Deborah S., Hagan, Daniel V.
core  

CO2 Fluxes and Soil Responses to Straw and Herbicide in Peanut

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Peanut cultivation plays an important agronomic role in Brazil, especially in rotation with sugarcane, promoting biological nitrogen fixation and improving soil quality. This study aimed to test the hypothesis that the combined use of sugarcane mulch, peanut cultivation, and herbicide application would affect soil CO₂ fluxes, soil chemical ...
Heytor Lemos Martins   +7 more
wiley   +1 more source

Organic Farming in Latin America and the Caribbean [PDF]

open access: yes, 2009
In Latin America, 220’000 producers managed 6.4 million hectares of agricultural land organically in 2007. This constitutes 20 percent of the world’s organic land.
Garibay, Salvador V., Ugas, Roberto
core  

Genomic variation in a widespread Neotropical bird (Xenops minutus) reveals divergence, population expansion, and gene flow [PDF]

open access: yes, 2014
Elucidating the demographic and phylogeographic histories of species provides insight into the processes responsible for generating biological diversity, and genomic datasets are now permitting the estimation of histories and demographic parameters with ...
Brumfield, Robb T., Harvey, Michael G.
core   +3 more sources

Defining Quality of Life: The Perspective of People Living with Parkinson's Disease

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Little is known about how people with Parkinson's conceptualize “quality of life.” Objective To describe the meaning of “quality of life” from the perspective of people with Parkinson's. Methods Participants (N = 42) were asked “What does the term ‘quality of life’ mean to you?” Definitions were analyzed using inductive qualitative ...
Samantha Dorrance   +13 more
wiley   +1 more source

Caracterização das áreas de cultivo da bananeira 'maçã' na região de Ribeirão do Sul/SP The characterization of banana 'Maçã' orchards in the Ribeirão do Sul/SP

open access: yesCiência e Agrotecnologia, 2007
Objetivou-se com este trabalho caracterizar os produtores de bananeira 'Maçã' do município de Ribeirão do Sul/SP, quanto à tecnologia empregada no cultivo da frutífera e à produção obtida.
Sarita Leonel   +1 more
doaj   +1 more source

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